My Favorite Add-ons

by Hellebaard

22 Add-ons in this Collection

Grammar Checker by Alexander Slesarev

Rated 3 out of 5 stars 6 reviews

3,203 users

Checks grammar using LanguageTool.

Contact Photos by Josh Geenen

Rated 4 out of 5 stars 26 reviews

2,808 users

Displays contact photos in the message header.

ThunderBirthDay by ingomueller.net

Rated 4 out of 5 stars 78 reviews

15,345 users

Display birthdays from the Thunderbird addressbooks as events in Lightning.

Duplicate Contact Manager by Marian Steinbach, Copelnug

Rated 3 out of 5 stars 108 reviews

18,017 users

Facilitates handling of duplicates in your address book(s). Allow to search and remove similar contacts.

Contacts Sidebar by Jeroen Peters

Rated 4 out of 5 stars 242 reviews

10,362 users

Displays the address books in a sidebar in Thunderbirds 3-pane-window and can be toggled with the F4 key or a toolbar button.

Visit my Contacts Sidebar site for recent versions and news.

Wikipedia (nl) by Pander

Rated 4 out of 5 stars 6 reviews

16 weekly downloads

Search in Dutch (nl) Wikipedia, the free encyclopedia

Link Widgets by cdn, Stephen Clavering

Rated 4 out of 5 stars 44 reviews

405 users

Eases navigation within sequences of pages (e.g. Web comics, forums, or technical specifications such as the HTML 4 Recommendation) by providing toolbar buttons for the first, previous, next, and last page. Also includes buttons to move up a level...
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